Shadow and light
Light is the electromagnetic radiation of rays which are visible to human eyes
and if some obstruction comes in its path then the light forms a shadow. When
we are small we use our hands to interrupt the light and make different form
of images and laugh on them with our friends those are gone days.
But with the development of technology we have learned and studied about
different forms of shadow and lights correct. The light has four main
properties they are intensity, wavelength, polarization and phase. The small
packets of light are called photons and they have properties of waves and
particles.
The speed of rotation is measured in m/sec or joule. There are many sources of
light and the natural source is sun light that gives us heat. The plants and
animals in the water emit some rays and this light energy which is known as
bioluminescence. Many theories have been formed from the ancient times till
now; the particle theory and the wave theory are some of the popular theories.
There are two important equations in physics to know about light: E = mc2
where E is the energy, m is mass and c is the speed of light with which it
travel, and E = hf.
Shadow varies in length in day it short while in night it is long. These
reflections are the formed only when the object are in the path of the light
and cannot reach to its destiny. The cross section of the shadow is the
reverse projection of the object. In other words each and every organism has
its own shadow which is visible to there own eyes or human beings.
The resolution of earth, moon, and sun causes solar and lunar eclipses. So at
last would say light and shadow moves with each other as good friends.
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